I think this is astonishingly creative. Nice work, Mike. Here are a few suggestions: (a) the pool looks kind of calm . . . why not add a few waves? (b) the two guys on the bottom both have brown hair and the two on top both have blond hair. Why don't you make their hair more random for realisticy? Overall, though, I think this is superb. Are those goggles or actual glasses? I think this is really cool!